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ra1l [238]
4 years ago
13

Question 3

Mathematics
1 answer:
Alborosie4 years ago
4 0
A) Substitution
substitute y = 5x-2 for y in the first equation and solve for x:
5x-2 = 7x-8 subtract 7x from both sides
-2x-2 = -8 now add 2 to both sides
-2x = -8 + 2 simplify
-2x = -6 divide both sides by -2
x=3
Now substitute x with 3 in either equation
y=5x-2 =5*3-2 =13 
(3,13)
B) (3,13) is the point where the two lines intersect
y=mx+b is the equation of a line
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46.8 divided by 1.2 equals
Furkat [3]

Answer: 39

Step-by-step explanation: We have to move the decimal one place to the right to make 1.2 a whole number, so 12. You do the same thing to 46.8, so you get 468. Then you divide from there. 12 can go into 46 3 times. 12 x 3 = 36. you subtract to get 10, then bring down your 8, to get a new number of 108. 12 can go into 108 9 times. 12 x 9 = 108. Then you have a remainder of 0. Your product is 39.

4 0
3 years ago
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mezya [45]

Answer:

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Step-by-step explanation:

Your slope should be -2/5

In slope intercept for it should look like this, y= -2/5x+b.

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6 0
3 years ago
Create 2 lines thatare parallel to 8x + 2y = 7?
Alinara [238K]

d1 = ax + by + c = 0 and d2= mx + ky + f = 0

if they are parallel :

\frac{a}{m} = \frac{b}{k} \neq \frac{c}{f}

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8x + 2y - 7 = 0

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7 0
3 years ago
Micah is three more than 5 times the age of his sister. If Micah is 18 years old, then what is the age of his sister? Identify t
Korolek [52]

Answer:

His sister is 3 years old.

Step-by-step explanation:

Micah - M

Sister - S

M = 3 + 5S

18 = 3 + 5S

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His sister is 3.

3 0
3 years ago
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k0ka [10]

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6 0
3 years ago
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